May 20 2021: Christopher Sims places 37th at the Men Pro/Cat 1/2/3 Race at the Driveway Series in a group sprint

May 13 2021: Christopher Sims places 18th at the Men Pro/Cat 1/2/3 Race at the Driveway Series in a field sprint

Apr 22 2021: Christopher Sims places 57th at the Men Pro/Cat 1/2/3 Race at the Driveway Series in a group sprint